<i>Q</i>-switched and mode-locked Er-doped fiber laser using PtSe<sub>2</sub> as a saturable absorber

Kang Zhang; Ming Feng; Yangyang Ren; Fang Liu; Xingshuo Chen; Jie Yang; Xiao-Qing Yan; Feng Song; Jianguo Tian

doi:10.1364/PRJ.6.000893

Photonics Research, Volume. 6, Issue 9, 893(2018)

Q-switched and mode-locked Er-doped fiber laser using PtSe₂ as a saturable absorber

Kang Zhang¹, Ming Feng^1、*, Yangyang Ren¹, Fang Liu¹, Xingshuo Chen¹, Jie Yang¹, Xiao-Qing Yan^1,2, Feng Song¹, and Jianguo Tian¹

Author Affiliations

¹Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, School of Physics and TEDA Applied Physics School, Nankai University, Tianjin 300071, China

²e-mail: yanxq01@nankai.edu.cn

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Figures & Tables(7)

Fig. 1. (a) AFM image of the CVD-grown PtSe2 film on the sapphire substrate. The red curve shows the thickness along the white dashed line. (b) Representative Raman spectrum of PtSe2 film taken at a 514 nm excitation wavelength. (c) Absorption spectrum of the PtSe2 film.

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Fig. 2. (a) Structure of the PtSe2-based SA. (b) Optical image and optical microscope image (inset) of the PtSe2-based SA. (c) Nonlinear optical transmission of TE mode in PtSe2-based SA. (d) Nonlinear optical transmission of TM mode in the PtSe2-based SA.

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Fig. 3. Structure of the PtSe2-SA-based EDFL. WDM, wavelength division multiplexer; EDF, Er-doped fiber; OC, optical coupler; PI-ISO, polarization-independent isolator; PC, polarization controller; SA, saturable absorber.

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Fig. 4. (a) Output pulse train, (b) single pulse profile, and (c) optical spectrum of the Q-switching EDFL at a pump power of 445 mW.

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Fig. 5. (a) Pulse repetition rate and pulse width versus pump power. (b) Average output power and single pulse energy vary with pump power.

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Fig. 6. (a) Output pulse train, (b) the measured autocorrelation trace and its fitted curve, (c) optical spectrum (inset, long-term 3 dB spectral bandwidth fluctuation of the laser), and (d) RF spectrum of the mode-locked EDFL.

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Table 1. Saturable Absorption Properties for Different Nanomaterial-Based SAs at 1.5 μm and Mode-Locked Lasing Output Properties Based on Them

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Table 1. Saturable Absorption Properties for Different Nanomaterial-Based SAs at 1.5 μm and Mode-Locked Lasing Output Properties Based on Them

Material	Modulation Depth	Saturable Intensity	Pulse Duration	Refs.
Single-walled carbon nanotubes	11.20%	$15.5 MW / {cm}^{2}$	0.47 ps	[8]
Graphene	18.17%–65.88%	0.53–1.09 MW/cm²	1.23 ps	[10]
Graphene oxide	2.6%	$60 MW / {cm}^{2}$	0.20 ps	[13]
BP	8.1%	$6.55 MW / {cm}^{2}$	0.95 ps	[17]
BPQDs	36%	$3.3 GW / {cm}^{2}$	1.08 ps	[18]
${Bi}_{2} {Te}_{3}$	1.7%	$630 MW / {cm}^{2}$	2.94 ps	[19]
${Bi}_{2} {Te}_{3}$	6.20%	$28 MW / {cm}^{2}$	0.32 ps	[22]
${MoS}_{2}$	4.3%	$34 MW / {cm}^{2}$	0.71 ps	[23]
${WS}_{2}$	15.1%	$157.6 MW / {cm}^{2}$	1.49 ps	[25]
${TiS}_{2}$	18%	$9.91 MW / {cm}^{2}$	1.04 ps	[26]
${MoTe}_{2}$	25.50%	$9.6 MW / {cm}^{2}$	0.23 ps	[27]
${PtSe}_{2}$	1.11%–4.90%	0.34–1.23 GW/cm²	1.02 ps	This work

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Kang Zhang, Ming Feng, Yangyang Ren, Fang Liu, Xingshuo Chen, Jie Yang, Xiao-Qing Yan, Feng Song, Jianguo Tian, "Q-switched and mode-locked Er-doped fiber laser using PtSe₂ as a saturable absorber," Photonics Res. 6, 893 (2018)

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Paper Information

Category: Lasers and Laser Optics

Received: Jun. 14, 2018

Accepted: Jul. 25, 2018

Published Online: Sep. 5, 2018

The Author Email: Ming Feng (mingfeng@nankai.edu.cn)

DOI:10.1364/PRJ.6.000893

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology